Clone disk with missing partition table / mbr ?


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Beardy
Beardy
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I've found the "Forensic sector copy" option already, the difficulty is the UI not allowing me to proceed without "selected partitions".
This is for a DIY attempt at data recovery, before spending a medium size fortune with specialists.
Obviously I don't want to be running software directly against the original drive & potentially damaging data, but rather clone the drive & attempt recovery on the clone.

It's a long time, but I seem to remember earlier versions allowing such cloning, either v5 or 4.x. The entire point of a "Forensic clone" is to get everything, even if it's apparently empty space, or someone ran Diskpart Clean against the drive destroying the partition layout information / mbr.

In this particular instance the source drive is from a device which stores data directly in a proprietary format without writing a conventional GPT/MBR, I am aware I could use Linux & invoke dd to clone it, but the prospect of losing access to Windows & all installed software for the duration of a multi-TB clone operation, well just say it's a less than optimal workaround.
Edited 16 December 2020 2:39 PM by Beardy
dbminter
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Why are you cloning a drive in this case?  Wouldn't you want to make an image for this particular instance?  Did you find the Make an exact copy of the partition(s) option?  You might also need to  check the option Backup without the verifying the file system before operation if the MBR is missing.  Reflect might try to make changes to the partition first before the operation.


I don't see what your problem is, though.  You say it's not letting you select a partition to image?

Beardy
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Because, I then need to buy an extra drive to have space to park an image, being a sector by sector clone of unknown compressibility, that's another expensive large drive, plus I have to sit through both image AND restore, instead of just the one clone operation.

It's not letting me select an (apparently blank.. as far as Macrium / Windows) sees drive & proceed, it's popping up an error that nothing is selected, & won't allow checking beside the source drive since it sees no "partitions" to auto-check inside it. Which is fine I want to copy sector by sector the space it thinks is unallocated.
dbminter
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Did you try enabling Backup without verifying the file system?

Beardy
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I changed from Intelligent sector copy to Forensic copy.
The Forensic copy option has no such checkbox under it, presumably because ththat & the other options there have no meaning for a sector by sector copy.


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I think the option I mentioned in under Verify System in the Defaults.

Beardy
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I changed the option under Cloning there, not the one for ordinary backups, not that it should make any difference given whatever is set in the per-job advanced settings ought to override the default, otherwise I've found a bug.
To be frank it doesn't look like a file system check error message, it says "Nothing selected" & won't allow to select a drive it incorrectly thinks is empty as a source, can't populate the checkbox.

"Clone" is what I want, no checks, no prevention of user error by devs, "Stupid mode"  just read every sector on input drive, write every sector on identical (apart from serial number) target drive.

I think there's some check taking place that's failing on a disk that isn't "initialised", not allowing to select a drive that appears blank as source even in "Forensic" mode, it's certainly mis-described if it can't do the clone operation described above..

Edit: Changing in global settings as well makes no difference, still can't proceed.
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